Zingiberis Rhizoma (Shokyo, [Japanese characters: see text]) showed significant ameliorative effect on the BaCl2-induced delay of gastric emptying in rat. Bioassay-guided fractionation of the aqueous extract of Shokyo resulted in isolation of 6-gingesulfonic acid (1) and shogasulfonic acid A (3). These compounds significantly improved the delay of gastric emptying on both BaCl2-induced and N(G)...

Addition of BaCl2 to the solution bathing colons of normal lizards did not alter the absorptive Na+ flux, but did reverse the net absorption of Cl- to become net secretion. Cl- secretion resulted from an increase in its serosal-to-mucosal movement and was positively correlated to an increase in short-circuit current. Ba2+-induced short-circuit current was dependent on the presence of both Na+ a...

Inward rectifier K+ channels (Kirs) were studied in the isolated perfused rat middle cerebral artery (MCA). The addition of 15 mM K+ (KCl) to the extraluminal bath dilated the MCAs. These dilations were blocked by selective inhibitors for the Kirs (40 μM BaCl2 or 40 mM CsCl) but not selective inhibitors for other K+channels (glibenclamide, tetraethylammonium, or 4-aminopyridine). Neither remova...

Studies were made in an effort to detect enhanced vasoconstriction ipsilateral to a ligated common carotid artery. No effect of ligation was found on the response to topically administered serotonin, norepinephrine or prostaglandin F2 alpha, in the gerbil in spite of varying a number of parameters, including anesthesia, percent of inspired oxygen, time elapsed following ligation, or body temper...

This work deals with the H1 condition numbers and the distribution of the ~ N;Msingular values of the preconditioned operators f~ 1 N;M WN;M ÂN;Mg. ÂN;M is the matrix representation of the Legendre Spectral Collocation discretization of the elliptic operator A de ned by Au := u + a1ux + a2uy + a0u in (the unit square) with boundary conditions: u = 0 on 0; @u @ A = u on 1. ~ N;M is the sti ness ...